Edward m



(No Model.)

E.. M. COLE. 5

LAST.

No.v 543,375. Patented July 23, 1895.

@f l' @www UNITED STATESV PATENT OFFICE.

` 'EDWARD `M.COLE, OF CHICAGO, ILLINOIS.

LAST.

SPECIFICATION forming part of Letters Patent No. 543,375, dated J' uly23, 1895. Application nea omar 10,1894. sentire. 525,453. (naman.)

.To @ZZ whom it may concern:

Be it known that I, EDWARD M. COLE, a citizen of the YUnited States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Lasts, of which thefollowing is a specification.

My invention relates to lasts made in two sections permanently securedtogether, and has for itsobj ect a form of construction that will makethe last self-locking when closed and contracting when being opened.

In the accompanying drawings, Figure 1 shows the last closed and theparts locked together. Fig. 2 shows the heel-section partially raisedand freed from the fore-part section, and Fig. 3 shows the saineentirely raised and tipped forward.

The last consists, primarily, in a fore-part section A and aheel-section B. The line of intersection between the two parts isinclined, with the upper part toward the toe and the lower part towardthe heel, and has an 0E- set in it near the bottom, leaving a ledge orprojection C that is part of thefore-part section A. AtongueD is securedin the section A by means of the pins E and is provided with a slot Fthat also hasits upper part inclined to the front, but to aslightly-less extent than the line of intersection between the twoparts. The slot F maybe made straight, but is preferably given a slightcurve that is shown somewhat exaggerated in the drawings.

The heel-section B is provided with a slot for the reception of thetongue D and has a pin G that passes through the slot F in said tongue.i It is also provided with a recess (shown at H inFig. 3) forpermitting4 the part B to tilt forward on the part A without cuttingaway any of the upper portion of the said fore-part section.

The relationship of the slot F, the pin G, and the line of intersectionbetween the two parts is such that when the heel-section is pushed downinto the position shown in Fig. l the twoparts are firmly wedgedtogether and can only be separated by exerting force. The ledge C on thefore-part section prevents the heel-section from being forced down toofar and the two parts from beingso firmly wedged together as to bedifficult to separate. It will be obvious that by virtue of theinclination ofthe slot F and the line of intersection toward each otherat the bottom any raising of the heel-section from its locked positionwill free the parts from each other and permit said heel-section to befreely raised to its extreme height. It willalso be obvious that byvirtue of the slot F. inclining-with its upperpart toward the front theraising of the heel-section will cause the last to contract in thedirection of its length and permit its easy removal from the shoe.

What I claim isl. In lasts consisting of two parts inseparably secured'together but permitting one part to have a limited movement inrelationship to the other part, an inclined line of intersec- .tionbetween the said parts, and means whereby the movement required to bringthe parts into a position corresponding to a uniform last will cause thetwo parts to be locked -securelytogether.

2. In a two-part last, one part of which has a limited movement on theother part, an inclined line of intersection between the said parts,along which the said movementoccurs, and means for guiding said movementso that at its extreme the said parts will be wedged together.

3. In a two-part last having an inclined line of intersection providedwith an offset therein, l

devices for connecting thetwo parts together and permitting one part tohave a limited movement on the other part, and means for directing thecourse of this movement so as to cause the two par-ts to be wedgedtogether when they are in a position conforming to a uniform last.

EDWARD M. COLE. Witnesses:

B. A. MAHONY, C. L. REDFIELD.

